Lamp



FIG. 1 is a front perspective view of a lamp showing my new design;

FIG. 2 is a top plan view thereof on a reduced scale;

FIG. 3 is a front elevational view thereof, the rear being a mirror image;

FIG. 4 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 5 is a bottom plan view thereof on a reduced scale. 

The ornamental design for a lamp, as shown and described. 